在置换作业过程中需做气体分析，动火前1小时内分析数据是有效的。()
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目前燃料容器和管道的焊补，主要有置换动火和带压不置换两种。()
电阻焊的焊接电缆使用冷却水循环系统，需经常检查，避免发生过热放炮。()
According to the text, so far the best way to distinguish liars from truth tellers is_____.
A. interrogating them professionally
B. multiplying their cognitive load
C. mamtaining eye contact with them
D. observing their eye blinks
Which of the following is true of the first two paragraphs？
A. Shifty eyes and nervous behaviors are the two revealing signs of lying.
B. Professional interrogation can make nervous and guilty liars to tell the truth.
C. Interrogation may not be the most appropriate way to find out the suspect.
D. Many reasons have proven that cognitive load is a well-established theory.
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